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A slender rod of length L and mass m is released from rest in the position shown. It is observed that after the rod strikes the vertical surface it rebounds to form an angle of 30° with the vertical.
(a) Determine the coefficient of restitution between knob K and the surface.
(b) Show that the same rebound can be expected for any position of knob K.
A sphere of radius 0.500 m, temperature 25.5°C, and emissivity 0.873 is isolated in an environment of temperature 77.0°C. What is the sphere's net rate of energy exchange
The position of a particle of mass m = 2kg is given by r=i(3t2-4t)+j(t3-8t2+10). Find the magnitude and direction of the force acting on the particle
A 107-kg horizontal platform is a uniform disk of radius 1.85 m and can rotate about the vertical axis through its center. Find the moment of inertia of this system, consisting of the platform and its population, with respect to the axis
A 12-lb sledge hammer head falls a distance of 3-m hitting a0.30-g lead nail initially at a temperature of 22 degreesCelsius. what was the speed of the sledge hammer head just beforehitting the nail
Two particles are moving along the x axis. Particle 1 has a mass m1 and a velocity v1 = +3.7 m/s. Find the ratio m1/m2 of the masses of the particles
When a 310-g piece of iron at 180C is placed in a 95-g aluminum calorimeter cup containing 250g of liquid at 10C, Determine the specific heat of the liquid
Two sound sources driven in phase by the equal amplifier are d = 4 m apart on the y axis. At a point a very large distance from the y axis, constructive interference is first heard at an angle θ1 = 0.140 rad with the x axis.
A charge of -8.0 nC is uniformly distributed around a ring of radius 1.3 m that lies in the yz plane with its center at the origin. Calculate the work done in moving the point charge to the origin
A square, single-turn coil 0.25 m on aside is placed with its plane perpendicular to a constant magneticfield. An emf of 18 mV is induced inthe winding when the area of the coil decreases at a rate of0.08 m2/s.
A diffraction grating with 343 lines/mm is 1.00 m in front of a screen. Discuss is the wavelength of light whose first-order maxima will be 13.7 cm from the central maximum on the screen?
A parallel plate capacitor has a potential difference between the plates of 80 V. what is the electrical energy stored by this capacitor
Sodium ions (Na+) move at 0.794 m/s through a bloodstream in the arm of a person standing near a large magnet. what would be the magnetic force on the arm
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